Stock Photo: Peru, Cuzco Province, Incas sacred valley, Inca archeological site of Machu Picchu, listed as World Heritage by UNESCO, built in the 15th century under the reign of Pachacutec Pachacuti Inca Yupanqui, the site was discovered by explorer Hiram Bingham in 1. Peru, Cuzco Province, Incas sacred valley, Inca archeological site of Machu Picchu, listed as World Heritage by UNESCO, built in the 15th century under the reign of Pachacutec Pachacuti Inca Yupanqui, the site was discovered by explorer Hiram